It is unlawful for any person, firm or corporation to erect, construct, install or maintain, or to cause or permit to be erected, constructed, installed or maintained, any commercial signs of any kind upon any private property, public sidewalk, street, alley, public right-of-way, public park, or other public place, except as required by law, or as allowed herein. (Ord. 611 § 1 (part), 2014)